Document PBDRY and SLEEPQ_STOP_ON_BDRY.
Requested and reviewed by: attilio MFC after: 3 days
This commit is contained in:
parent
4576bbe233
commit
ec897c886d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=200450
@ -25,7 +25,7 @@
|
||||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd April 4, 2008
|
||||
.Dd December 12, 2009
|
||||
.Os
|
||||
.Dt SLEEP 9
|
||||
.Sh NAME
|
||||
@ -97,6 +97,7 @@ when it resumes.
|
||||
should never be used, as it is for compatibility only.
|
||||
A new priority of 0 means to use the thread's current priority when
|
||||
it is made runnable again.
|
||||
.Pp
|
||||
If
|
||||
.Fa priority
|
||||
includes the
|
||||
@ -113,6 +114,17 @@ possible, and
|
||||
is returned if the system call should be interrupted by the signal
|
||||
(return
|
||||
.Er EINTR ) .
|
||||
If
|
||||
.Dv PBDRY
|
||||
flag is specified in addition to
|
||||
.Dv PCATCH ,
|
||||
then the sleeping thread is not stopped while sleeping upon delivery of
|
||||
.Dv SIGSTOP
|
||||
or other stop action.
|
||||
Instead, it is waken up, assuming that stop occurs on reaching a stop
|
||||
point when returning to usermode.
|
||||
The flag should be used when sleeping thread owns resources, for instance
|
||||
vnode locks, that should be freed timely.
|
||||
.Pp
|
||||
The parameter
|
||||
.Fa wmesg
|
||||
|
@ -23,7 +23,7 @@
|
||||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd December 11, 2009
|
||||
.Dd December 12, 2009
|
||||
.Dt SLEEPQUEUE 9
|
||||
.Os
|
||||
.Sh NAME
|
||||
@ -198,12 +198,19 @@ A sleep queue used to implement
|
||||
.Xr pause 9 .
|
||||
.El
|
||||
.Pp
|
||||
There is currently only one optional flag:
|
||||
There are currently two optional flag:
|
||||
.Pp
|
||||
.Bl -tag -width ".Dv SLEEPQ_INTERRUPTIBLE" -compact
|
||||
.It Dv SLEEPQ_INTERRUPTIBLE
|
||||
The current thread is entering an interruptible sleep.
|
||||
.El
|
||||
.Bl -tag -width ".Dv SLEEPQ_STOP_ON_BDRY" -compact
|
||||
.It Dv SLEEPQ_STOP_ON_BDRY
|
||||
When thread is entering an interruptible sleep, do not stop it upon
|
||||
arrival of stop action, like
|
||||
.Dv SIGSTOP .
|
||||
Wake it up instead.
|
||||
.El
|
||||
.Pp
|
||||
A timeout on the sleep may be specified by calling
|
||||
.Fn sleepq_set_timeout
|
||||
|
Loading…
Reference in New Issue
Block a user